GIF Converter
FileFlip converts GIF files into 61 other formats entirely inside your browser, using ImageMagick, MuPDF and Pandoc compiled to WebAssembly. The GIF file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. There is no file-size limit and no account to create.
How do I convert a GIF file?#
- Drop your GIF file onto the converter at the top of this page, or click it to pick one from your computer.
- Choose the format you want out of it. FileFlip downloads the engine that conversion needs, once, and your browser caches it.
- Conversion starts the moment you pick the format, and the result is yours to download. The work happens in this tab, so nothing is uploaded and nothing is queued.
Is it safe to convert GIF files online?#
Yes, because nothing is uploaded. FileFlip converts GIF files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What happens to a GIF file#
FileFlip converts GIF into 61 formats with ImageMagick, MuPDF and Pandoc, all of it inside the browser tab. Each conversion below names the engine it uses, what it downloads, and exactly what that conversion keeps or drops.
| Category | Image Files |
|---|---|
| File extension | .gif |
| FileFlip support | Read and written |
| Conversions available | 61 |
| Engines | ImageMagick, MuPDF and Pandoc |
| Downloaded to your browser | 14.1 MB on the first conversion, then cached |
What is a GIF file?#
A GIF file stores one or more indexed-color images, each limited to a palette of at most 256 colors, in a container CompuServe designed in 1987 that became the format the web uses for short looping animations.
Use GIF for short looping animations and simple graphics with flat colors, like reaction clips or icons, where universal playback matters more than file size.
Convert GIF to PNG or WebP when the image is a single still frame, since both hold more than 256 colors and compress a flat-color graphic to a smaller file; convert an animated GIF to WebP or MP4 when file size matters, since either can be a fraction of the size at the same frame count.
The GIF file format reference covers the specification, the programs that open one, and what each conversion keeps or drops.
GIF questions people ask#
Is GIF a lossy or lossless format?
The compression GIF itself performs is lossless: LZW compresses the pixel data without discarding anything. The loss happens a step earlier, when an image with more than 256 colors has to be quantized down to fit GIF's palette limit, which is a form of lossy conversion that occurs before compression even starts. A graphic that already has 256 colors or fewer, like a simple icon, converts to GIF with no loss at all.
Why is GIF limited to 256 colors?
GIF stores each pixel as an index into a color table of at most 256 entries, a design CompuServe chose in 1987 to keep files small on the modem speeds of the time. Each frame can carry its own local color table chosen from the full 24-bit RGB space, so a multi-frame GIF can technically show more than 256 colors overall, but any single frame is still capped at 256.
How do you pronounce GIF?
CompuServe engineer Steve Wilhite, who created the format, has said he intended it to be pronounced 'jif,' with a soft g, deliberately echoing the peanut butter brand of the same name. He said so publicly when accepting a Webby Award in 2013, which set off a large and still-unresolved argument online, and most dictionaries now list both the soft-g and hard-g pronunciations as acceptable.
Was GIF ever patent-encumbered?
Yes. GIF's LZW compression was covered by a patent Unisys held, and in December 1994 Unisys announced it would require licensing fees from software that read or wrote GIF files, which caused a public backlash and pushed the PNG format's creation as a patent-free alternative. The core US patent expired in June 2003 and the last international patents by mid-2004, so LZW and GIF have been free to use without a license since then.
Why do GIFs have no sound?
The GIF format only ever defines image data: a stream of one or more indexed-color frames plus timing and looping information. CompuServe never added an audio channel to either the 1987 or 1989 version of the spec, so a GIF with sound isn't possible; a video format like MP4 or WebM is needed for that.